Former safety officers to take stand in Dreamworld inquest

Former safety officers and a sacked Dreamworld staffer are expected to take to the witness stand for day two of the second half of the inquest into the Dreamworld Thunder River Rapids tragedy.

The inquest has started again as Shine Lawyers confirmed to 9NEWS it will soon launch legal action against the theme park on behalf of four former workers who claim they have suffered "severe psychological injuries".

One of the four who are taking action is expected to give evidence today, alongside a worker who was fired following a similar incident on the Thunder River Rapids ride in 2014, when a raft flipped with nobody onboard.

Cindy Low, Luke Dorsett, Roozi Araghi and Kate Goodchild all died in the tragedy. (9news)The Thunder River Rapids ride. (Supplied)

Shocking revelations came out of the incident yesterday, with maintenance supervisors testifying they never saw a qualified engineer overlook the ride during nien annual shut downs, nor were any risk assessments carried out.

The families and friends of the four victims, Cindy Low, Luke Dorsett, Roozi Araghi and Kate Goodchild, have flown in from interstate to watch the second block of proceedings, which will run for two weeks.